Narrator:Abdullāh ibn ‘Umar
أَخْبَرَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ عَبْدِ اللَّهِ بْنِ دِينَارٍ، عَنِ ابْنِ عُمَرَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ
" الْبَيِّعَانِ بِالْخِيَارِ مَا لَمْ يَتَفَرَّقَا أَوْ يَكُونَ بَيْعُهُمَا عَنْ خِيَارٍ "
It was narrated from Sufyan, from 'Abdullah bin Dinar, from Ibn 'Umar, from the Prophet who said:
"Two traders have the choice as long as they have not separated, or, they have chosen to conclude the transaction."
Reported by An-Nasa’i (No. 4480, 4466, 4467, 4468, 4470, 4471, 4473), Al-Bukhari (No. 2107), Muslim (No. 1531d) and Ahmad (No. 370, 4254, 4338).